docs: def destroy_sns_event(app_name, env, region):
      """ Destroy all Lambda SNS subscriptions.
  
      Args:
          app_name (str): name of the lambda function
          env (str): Environment/Account for lambda function
          region (str): AWS region of the lambda function
  
      Returns:
          boolean: True if subscription destroyed successfully
      """
      session = boto3.Session(profile_name=env, region_name=region)
      sns_client = session.client('sns')
  
      lambda_subscriptions = get_sns_subscriptions(app_name=app_name, env=env, region=region)
  
      for subscription_arn in lambda_subscriptions:
          sns_client.unsubscribe(SubscriptionArn=subscription_arn)
  
      LOG.debug("Lambda SNS event deleted")
      return True